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3 years ago

What is the axis of symmetry in a parabola khanacademy?

Mathematics

1 answer:

elena-s [515]3 years ago

7 0

The axis of symmetry in a parabola is a line that's vertical that divides into 2 congruent halves.

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I need help please :((((

patriot [66]

A: (-4, -2)

B: (-4, -4)

C: (1, 4)

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3 years ago

A store sells rakes for 9$ each. if the sale of the rakes totaled 171$ how many rakes were sold

Allisa [31]

You have to get the amount of rakes sold and divide that by nine. So it would be:171 divided by 9 :)

3 0

3 years ago

Read 2 more answers

Tafu is working with subatomic particles in the Physics lab. A positron is traveling in a straight line down the particle accele

jeka57 [31]

Answer:

g) 2 h) 4

Step-by-step explanation:

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3 years ago

a number of rounded to the nearest hundred thousand 400,000. the same number ro u nded to the nearest rounded to the nearest ten

a_sh-v [17]

9514 1404 393

Answer:

354,998

Step-by-step explanation:

If the number is less than 350,000, it will not round to 400,000.

If the number is 355,000 or more, it will not round to 350,000.

The number (n) must satisfy ...

350,000 ≤ n < 355,000

If we're restricted to integers, the number could be any between 350,000 and 354,999, inclusive. One possibility is 354,998.

6 0

3 years ago

Approximate the solutions to this system.

Nastasia [14]

Answer:

$x = \± 0.82$

$y =-3.18 \ or\ -4.82$

Step-by-step explanation:

Given

$y = 3x^2 + x - 6$

$y = x -4$

Required

The solution

First, we equate both expressions.

$y = y$

$3x^2 + x - 6 = x - 4$

Subtract x from both sides

$3x^2 - 6 = - 4$

Add 6 to both sides

$3x^2 = 2$

Divide both sides by 3

$x^2 = 0.667$

Solve for x

$x = \± \sqrt{0.667$

$x = \± 0.82$

To solve for y, we have:

$y = x -4$

This gives

$y = \± 0.82 - 4$

Split

$y = 0.82 - 4 \ or\ -0.82 - 4$

$y =-3.18 \ or\ -4.82$

4 0

3 years ago